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中山站至A冰穹考察及沿线GPS复测结果分析 被引量:8
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作者 王清华 鄂栋臣 陈春明 《武汉大学学报(信息科学版)》 EI CSCD 北大核心 2001年第3期200-204,231,共6页
南极中山站至A冰穹 (Dome_A)考察沿线布设有GPS高精度定位点 ,通过用高精度GPS静态定位处理软件GAMIT/GLOBK对三期观测数据的处理可知 ,考察沿线的GPS点以 8~ 2 5m/a的速度向西北方向 (冰盖边缘方向 )流动 ,越接近冰盖边缘 ,运动速度越... 南极中山站至A冰穹 (Dome_A)考察沿线布设有GPS高精度定位点 ,通过用高精度GPS静态定位处理软件GAMIT/GLOBK对三期观测数据的处理可知 ,考察沿线的GPS点以 8~ 2 5m/a的速度向西北方向 (冰盖边缘方向 )流动 ,越接近冰盖边缘 ,运动速度越快 ,最快达到 10 0m/a ;而且 ,冰川整体上以 1~ 5m/a2 的加速度流动。同时 ,由于冰盖的流动 ,引起了垂直方向 0 .2~ 1m/a的沉降速度。 展开更多
关键词 南极内陆冰盖 A冰穹 GPS 冰川运动 中山站 数据处理
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Antarctic Traverses from Zhongshan Station to Dome-A and the Result Analysis for the GPS Points along the Expedition Route 被引量:1
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作者 WANG Qinghua E Dongchen CHEN Chunming 《Geo-Spatial Information Science》 2002年第1期31-36,共6页
Some GPS points were set up and occupied and reoccupied along the traverse route from Zhongshan Station to DomeA.The result analysis for the GPS data processed by GAMIT/GLOBK package was presented in this paper.It was... Some GPS points were set up and occupied and reoccupied along the traverse route from Zhongshan Station to DomeA.The result analysis for the GPS data processed by GAMIT/GLOBK package was presented in this paper.It was indicated that the ice along the traverse route flowed with an 825 m/a velocity to the northwest in the last three years,which was the direction of the edge of the ice sheet.The maximum horizontal flow velocity is about 100 m/a.Moreover,due to the ice flow,a 0.21 m/a sedimentation rate is achieved.Finally,a 15 m/a 2 horizontal acceleration is achieved from the GPS data of the three different stages. 展开更多
关键词 Antarctic inland ice_sheet traverse DOME_A GPS GAMIT/GLOBK ice flow
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